An English-Spanish Glossary of Terminology Used in Forestry, Range, Wildlife, Fishery, Soils, and Botany
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The Synergistic Effects of Sodium and Potassium on the Xerophyte
Plant Physiology and Biochemistry xxx (xxxx) xxx–xxx Contents lists available at ScienceDirect Plant Physiology and Biochemistry journal homepage: www.elsevier.com/locate/plaphy Research article The synergistic effects of sodium and potassium on the xerophyte Apocynum venetum in response to drought stress ∗ Yan-Nong Cuia,1, Zeng-Run Xiaa,b,1, Qing Maa, Wen-Ying Wanga, Wei-Wei Chaia, Suo-Min Wanga, a State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730000, PR China b Ankang R&D Center of Se-enriched Products, Key Laboratory of Se-enriched Products Development and Quality Control, Ministry of Agriculture, Ankang, Shaanxi, 725000, PR China ARTICLE INFO ABSTRACT Keywords: Apocynum venetum is an eco-economic plant species with high adaptability to saline and arid environments. Our Apocynum venetum previous work has found that A. venetum could absorb large amount of Na+ and maintain high K+ level under Potassium efficiency saline conditions. To investigate whether K+ and Na+ could simultaneously enhance drought resistance in A. Osmotic stress venetum, seedlings were exposed to osmotic stress (−0.2 MPa) in the presence or absence of additional 25 mM Sodium NaCl under low (0.01 mM) and normal (2.5 mM) K+ supplying conditions, respectively. The results showed that Osmotic adjustment A. venetum should be considered as a typical K+-efficient species since its growth was unimpaired and possessed Photosynthesis a strong K+ uptake and prominent K+ utilization efficiency under K+ deficiency condition. Leaf K+ con- centration remained stable or was even significantly increased under osmotic stress in the presence or absence of NaCl, compared with that under control condition, regardless of whether the K+ supply was sufficient or not, and the contribution of K+ to leaf osmotic potential consistently exceeded 37%, indicating K+ is the uppermost contributor to osmotic adjustment of A. -
Punam Jaiswal PG-IV XEROPHYTES(Morphology).Pdf
Environmental Biology Prof.(Dr.) Punam Jeswal Head M.Sc semester IV Botany Department XEROPHYTES A xerophyte (Gr. Xeros, dry; phyton, plant) is a plant which is able to survive in an environment with low availability of water or moisture, such as desert, ice or snow covered region. Xerophytes defined as "plants of dry habitats". Xerophytes are plants adopted in order to survive or grow in dry habitats (xeric condition) where the availability of water is very less. Daubenmire (1959) defined xerophytes as "plants which grow on substrate that usually become depleted of water to a depth of at least two decimeters during normal growth season". Xerophytes are plants of relatively dry habitats - dry in soil and most often also climatically. Xerophytes plants live in condition of water scarcity i.e. in xeric condition (habitat). Xeric habitats are of two types - 1) Physically dry habitat :- Water retaining capacity of the soil very low and climate is dry. Water cannot retained like desert or rock surface. 2) Physiologically dry :- Water is present in excess, but not in absorbable conditions or the plants cannot absorb it. e.g. high salt water, high acidic water and high cold water, water in snow form. Adaptation Strategies of Xerophytes :- Xerophytes adopt various features according to their climate, geography and requirements. Xerophytes plants aim at the following adaptation strategies :- 1) Absorb more water from the surrounding. 2) Retain water in their organs. 3) Reduce the water loss by transpiration to minimise. 4) Reduce utilisation of water ( Prevent high consumption of water) Types Of Xerophytes On the basis of morphology, physiology and life cycle patterns, xerophytes are classified into three categories :- 1) Ephemeral Annuals ( Drought Evaders or Drought Escapers) * They are also called as 'drought evaders' or 'drought escapers' common in arid zones. -
Effects of Temperature on Seta Elongation in Atrichum Undulatum^ 2- 3
EFFECTS OF TEMPERATURE ON SETA ELONGATION IN ATRICHUM UNDULATUM^ 2- 3 DENNIS WM. STEVENSON4, JAMES R. RASTORFER, AND RAY E. SHOWMAN Department of Botany, The Ohio State University, Columbus, Ohio 43210 ABSTRACT Field-collected gametophytes of Atrichum undulatum were placed in two growth chambers which were maintained at the same light intensity and light period, but at two different temperature regimes. After sporophyte development, differences in seta lengths were observed. Measurements of cell lengths revealed that attached setae grown in the high-temperature regime (12°-22°C) were longer than those grown in a low-temperature regime (3°-12°C), as a result of both more cell divisions and a larger average cell length. Thus, temperature appeared to influence both cell division and cell elongation in the setae of Atrichum undulatum. INTRODUCTION Sporophytes of most liverworts and mosses (Bryophyta) consist of a basal foot attached to the gametophyte and a seta or stalk, which supports a spore-bearing capsule at its apex. Lengths of setae at sporophyte maturity differ among species, varying from a minute structure to a conspicuous organ which may exceed 5 cm (Watson, 1964). Setae of the Common Hair-Cap Moss (Polytrichum commune) are reported to vary from 6 to 12 cm in length (Welch, 1957), but unfortunately it is not clearly understood whether these differences are caused by genetic factors or environmental factors or both. A few studies have suggested that seta elonga- tion can apparently be influenced by environmental factors (e.g. temperature; light intensity; day length), and that there may be interactions of internal plant factors (e.g. -
(2) How Plants Manage Water Deficit and Why It Matters
Plant-Water Relations (2) How plants manage water deficit and why it matters Photo credits: Mel Oliver; William M. Ciesla, Forest Health Management International; R.L. Croissant Bugwood.org © 2014 American Society of Plant Biologists Outline 1. Water scarcity is a growing problem 2. Desiccation-tolerant plants and xerophytes 3. Plant responses to water deficit Perception and signaling Transcriptional responses Effects on photosynthesis Effects on growth and development 4. Towards water-optimized and drought-tolerant agriculture Optimizing irrigation Monitoring water stress 5. Breeding for drought-tolerance Classical approaches Candidate gene approaches © 2014 American Society of Plant Biologists Key definitions and concepts Desiccation: Extreme water loss, equilibration to the water potential of the air which is generally low Desiccation tolerance: The ability to withstand and recover from desiccation Dehydration: The process of water loss from a cell or system Water deficit: Sub-optimal water status from the perspective of plant function Drought: Lack of rainfall or water supply leading to water deficit Drought tolerance: The ability to withstand suboptimal water availability through adaptations or acclimations (not the same as desiccation tolerance) Xerophyte: A plant adapted to live in a low-water environment Mesophyte: A plant without specialized adaptions to low-water or high- water environments Adaptation: Long-term evolutionary process by which an organism becomes suited to its environment Acclimation: Short-term physiological process -
Forest and Conservation Nursery Associations 2004
United States Department of Agriculture National Proceedings: Forest Service Rocky Mountain Forest and Conservation Research Station Proceedings Nursery Associations 2004 RMRS-P-35 August 2005 Abstract Dumroese, R. K.; Riley, L. E.; Landis, T. D., tech. coords. 2005. National proceedings: Forest and Conservation Nursery Associations—2004; 2004 July 12–15; Charleston, NC; and 2004 July 26–29; Medford, OR. Proc. RMRS-P-35. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 142 p. This proceedings is a compilation of 30 papers that were presented at the regional meetings of the Forest and Conservation Nursery Associations in the United States in 2004. The joint meeting of the Southern Forest Nursery Association and the Northeastern Forest and Conservation Nursery Association occurred July 12 to 15 at the Embassy Suites Hotel in Charleston, South Carolina. The meeting was hosted by the South Carolina Forestry Commission, Taylor Nursery. In addition to technical sessions, tours of the Baucom Containerized Nursery and Mead/Westvaco Nursery were included. The Western Forest and Conservation Nursery Association meeting was held at the Red Lion Inn in Medford, Oregon, July 26 to 29. The meeting was hosted by the USDA Forest Service, J Herbert Stone Nursery. Morning technical sessions were followed by field trips to the J Herbert Stone Nursery and to restoration outplantings on the Timbered Rock Fire of 2002 in southern Oregon. Subject matter for both sessions included nursery history, conifer and hardwood nursery culturing, greenhouse management, fertilization, pest manage- ment, restoration, and native species propagation. Keywords: bareroot nursery, container nursery, nursery practices, fertilization, pesticides, seeds, reforestation, restoration, plant propagation, native plants, tree physiology, hardwood species Note: Papers were edited to a uniform style; however, authors are responsible for the content and accuracy of their papers. -
Landscaping with Native Plants by Stephen L
SHORT-SEASON, HIGH-ALTITUDE GARDENING BULLETIN 862 Landscaping with native plants by Stephen L. Love, Kathy Noble, Jo Ann Robbins, Bob Wilson, and Tony McCammon INTRODUCTION There are many reasons to consider a native plant landscape in Idaho’s short- season, high-altitude regions, including water savings, decreased mainte- nance, healthy and adapted plants, and a desire to create a local theme CONTENTS around your home. Most plants sold for landscaping are native to the eastern Introduction . 1 United States and the moist climates of Europe. They require acid soils, con- The concept of native . 3 stant moisture, and humid air to survive and remain attractive. Most also Landscaping Principles for Native Plant Gardens . 3 require a longer growing season than we have available in the harshest cli- Establishing Native Landscapes and Gardens . 4 mates of Idaho. Choosing to landscape with these unadapted plants means Designing a Dry High-Desert Landscape . 5 Designing a Modified High-Desert Landscape . 6 accepting the work and problems of constantly recreating a suitable artificial Designing a High-Elevation Mountain Landscape . 6 environment. Native plants will help create a landscape that is more “com- Designing a Northern Idaho Mountain/Valley fortable” in the climates and soils that surround us, and will reduce the Landscape . 8 resources necessary to maintain the landscape. Finding Sources of Native Plants . 21 The single major factor that influences Idaho’s short-season, high-altitude climates is limited summer moisture. Snow and rainfall are relatively abun- dant in the winter, but for 3 to 4 months beginning in June, we receive only a YOU ARE A SHORT-SEASON, few inches of rain. -
Faunistic and Biological Notes on Marine Invertebrates Iii
Biologiske Meddelelser udgivet af Det Kongelige Danske Videnskabernes Selskab Bind 23, no. 1 Biol. Medd. Dan. Vid. Selsk. 23, no. 1 (1956) FAUNISTIC AND BIOLOGICAL NOTES ON MARINE INVERTEBRATES III. • The Reproduction and Larval Development of some Polychaetes from the Isefjord, with some Faunistic Notes. B Y • ERIK RASMUSSEN (Report from the Isefjord Laboratory No. 3) København 1956 i kommission hos Ejnar Munksgaard D et Kongelige Danske V idenskabernes Selskab udgiver følgende publikationsrækker : L'Académie Royale des Sciences et des Lettres de Danemark publie les séries suivantes: Bibliograûsk forkortelse Ahréi/iation bibliographique Oversigt over selskabets virksomhed (8°) Overs. Dan. Vid. Selsk. (Annuaire) Historisk-filologiske Meddelelser (8°) Hist. Filol. Medd. Dan. Vid. Selsk. -Historisk-filologiske Skrifter (4°) Hist. Filol. Skr. Dan. Vid. Selsk. (Histoire et Philologie) Arkæologisk-kunsthistoriske Meddelelser (8°) Arkæol. Kunsthist. Medd. Dan. Vid. Selsk. Arkæologisk-kunsthistoriske Skrifter (4°) Arkæol. Kunsthist. Skr. Dan. Vid. (Archéologie et Histoire de I’Art} Selsk. Filosofiske Meddelelser (8°) Filos. Medd. Dan. Vid. Selsk. (Philosophie) Matematisk-fysiske Meddelelser (8°) Mat. Fys. Medd. Dan. Vid. Selsk. (Mathémaliqnes et Physique) Biologiske Meddelelser (8°) Biol. Medd. Dan. Vid. Selsk. Biologiske Skrifter (4®) Biol. Skr. Dan. Vid. Selsk. (Biologie) Selskabets sekretariat og postadresse: Dantes plads 5, København V. L'adresse poslale du secrétariat de VAcadémie est: Det Kongelige Danske Videnskabernes Selskab, Dantes plads 5, København V, Danmark. Selskabets kommissionær: Ejnar Munksgaard’s forlag, Nørregade 6, København K. Les publications sont en vente chez le commissionnaire: Ejnar Münksgaard, éditeur. Nørregade 6, København K, Danmark. Biologiske Meddelelser udgivet af Det Kongelige Danske Videnskabernes Selskab Bind 23, no. 1 Biol. Medd. Dan. -
Components of Sustainable Production Practices for Container Plant Nurseries
Proc. Fla. State Hort. Soc. 124:294–298. 2011. Components of Sustainable Production Practices for Container Plant Nurseries Alex Bolques*1, GAry Knox2, MAtthew ChAppell3, lindA lAndruM4, And edwin duKe5 1Florida AandM University/CESTA, Gadsden County Extension, 2140 W. Jefferson Street, Quincy, FL 32351-1905 2University of Florida/IFAS Department of Environmental Horticulture, North Florida Research and Education Center, 155 Research Road, Quincy, FL 32351 3University of Georgia, Horticulture Department, 211 Hoke Smith Building, Athens, GA 30630 4University of Florida/IFAS/NFREC-Live Oak, 7580 Co Rd 136, Live Oak, FL 32060 5Florida AandM University, College of Engineering Sciences, Technology and Agriculture, Tallahassee, FL 32307 AdditionAl index words. container plants, green industries, nursery production, integrated pest management Sustainable production practices in container plant nursery operations are methods developed to conserve or reduce natural resources needed to produce a crop. These include production practices aimed at reducing the levels of chemical fertilizers and pesticides; managing insects, diseases and weeds by utilizing an integrated pest management approach; reducing, reusing or recycling materials and supplies; increasing production efficiency; and using conservation prac- tices aimed at reducing water consumption, managing runoff and controlling erosion. A listing of sustainable nursery production practices derived from literature review and selective nursery operation site visits in Florida and Georgia are provided. Introduction uncertainty or inexactness of meaning in the term’s definition (Gold and Gates, 2007). To this end, specific industries, includ- A survey of nursery and greenhouse plant growers found “go- ing segments of the green industry, have developed definitions ing green” and “minimal or no negative impact on the environ- for sustainable production. -
Plant Classification and Seeds
Ashley Pearson – Plant Classification and Seeds ● Green and Gorgeous Oxfordshire ● Cut flowers ● Small amounts of veg still grown and sold locally Different Classification Systems Classification by Life Cycle : Ephemeral (6-8 wks) Annual Biennial Perennial Classification by Ecology: Mesophyte, Xerophyte, Hydrophyte, Halophyte, Cryophyte Raunkiaers Life Form System: based on the resting stage Raunkiaers Life Form System Classification contd. Classification by Plant Growth Patterns Monocots vs. Dicots (NB. only applies to flowering plants - angiosperms) Binomial nomenclature e.g., Beetroot = Beta vulgaris Plantae, Angiosperms, Eudicots, Caryophyllales, Amaranthaceae, Betoideae, Beta, Beta vulgaris After morphological characters, scientists used enzymes and proteins to classify plants and hence to determine how related they were via evolution (phylogeny) Present day we use genetic data (DNA, RNA, mDNA, even chloroplast DNA) to produce phylogenetic trees Plant part modifications ● Brassica genus ● ● Roots (swede, turnips) ● Stems (kohl rabi) ● Leaves (cabbages, Brussels Sprouts-buds) ● Flowers (cauliflower, broccoli) ● Seeds (mustards, oil seed rape) Plant hormones / PGR's / phytohormones ● Chemicals present in very low concentrations that promote and influence the growth, development, and differentiation of cells and tissues. ● NB. differences to animal hormones! (no glands, no nervous system, no circulatory system, no specific mode of action) ● Not all plant cells respond to hormones, but those that do are programmed to respond at specific points in their growth cycle ● Five main classes of PGR's ● Abscisic acid (ABA) ● Role in abscission, winter bud dormancy (dormin) ● ABA-mediated signalling also plays an important part in plant responses to environmental stress and plant pathogens ● ABA is also produced in the roots in response to decreased water potential. -
OREGON ESTUARINE INVERTEBRATES an Illustrated Guide to the Common and Important Invertebrate Animals
OREGON ESTUARINE INVERTEBRATES An Illustrated Guide to the Common and Important Invertebrate Animals By Paul Rudy, Jr. Lynn Hay Rudy Oregon Institute of Marine Biology University of Oregon Charleston, Oregon 97420 Contract No. 79-111 Project Officer Jay F. Watson U.S. Fish and Wildlife Service 500 N.E. Multnomah Street Portland, Oregon 97232 Performed for National Coastal Ecosystems Team Office of Biological Services Fish and Wildlife Service U.S. Department of Interior Washington, D.C. 20240 Table of Contents Introduction CNIDARIA Hydrozoa Aequorea aequorea ................................................................ 6 Obelia longissima .................................................................. 8 Polyorchis penicillatus 10 Tubularia crocea ................................................................. 12 Anthozoa Anthopleura artemisia ................................. 14 Anthopleura elegantissima .................................................. 16 Haliplanella luciae .................................................................. 18 Nematostella vectensis ......................................................... 20 Metridium senile .................................................................... 22 NEMERTEA Amphiporus imparispinosus ................................................ 24 Carinoma mutabilis ................................................................ 26 Cerebratulus californiensis .................................................. 28 Lineus ruber ......................................................................... -
BTN Edible Native Landscaping
Think Globally, Plant Locally Eat Native You are HERE Back to Natives RESTORATION "Connecting the community to habitat restoration through service learning and native plant education." Achievements in Landscape Design: Back to Natives designs California native landscapes for homeowners and businesses throughout Orange and Los Angeles Counties. Chief landscape designer for the “Costa Mesa Green Home,” which is certified ‘Platinum’ by the US Green Building Council’s (USGBC) Leadership in Energy and Environmental Design (LEED®) for Homes Program. Provided the landscape design for “Project 319,” one of the first homes in Orange County to earn the Build It Green, GreenPoint Rated designation. Achievements in Landscape Design: Back to Natives designs California native landscapes for homeowners and businesses throughout Orange and Los Angeles Counties. Guest designer at both the Los Angeles Garden Show at the LA Arboretum …and the Southern California Spring Garden Show at South Coast Plaza. Achievements in Landscape Design: Back to Natives designs California native landscapes for homeowners and businesses throughout Orange and Los Angeles Counties. Featured in the California Native Plant Society Garden Tour in 2011, 2012 and 2013. Achievements in Landscape Design: Back to Natives designs California native landscapes for homeowners and businesses throughout Orange and Los Angeles Counties. Designed Maple/Occidental Park for the City of Santa Ana. Back up a second! What does “native” mean? “Natives” were here prior to European contact. “Natives” evolved here over a very long period, and form a complex network of relationships. “Natives” are adapted to our climate and geography. Non-natives But they’re so pretty, what harm can they do? Diseases or weather conditions 42% of the nation's endangered and which kept the plants in check threatened species have declined as a in their homeland are absent result of encroaching exotic plants and animals. -
ADHESIVE FORCE of a SINGLE GECKO SETA a Thesis Presented
ADHESIVE FORCE OF A SINGLE GECKO SETA A Thesis Presented to The Graduate Faculty of The University of Akron In Partial Fulfillment of the Requirements for the Degree Master of Science Lan Yu May, 2018 ADHESIVE FORCE OF A SINGLE GECKO SETA Lan Yu Thesis Approved: Accepted: Advisor Dean of College Dr. Ali Dhinojwala Dr. Eric J. Amis Committee Member Dean of the Graduate School Dr. Hunter King Dr. Chand K. Midha Department Chair Date Dr. Coleen Pugh ii ABSTRACT The gecko’s adhesion system uses arrays of setae to achieve strong and repeatable adhesion. Observation of the toe pad structure shows that shorter setae are generally proximal while longer ones distal [39]. We hypothesized that a seta of longer length would generate higher adhesive force, as long and slender setae have lower bending modulus, and therefore making it easier to contact spatulae with the surface. By following previous single seta experiments [11], we first measured the shear force generated by an isolated gecko seta using Nano Bionix. We also tested the length hypothesis by measuring the shear adhesion ability of single seta of varying lengths ranging from 80 to 140µm, which was taken from different parts of the gecko toe pad from distal to proximal. Measurements gave the result of shear forces of a single seta in the range of 80 to 250µN and an average of 136.81µN. This number is lower than the average value 194µN in previous studies, which is tested under a preload of 15µN [11]. In addition, results from 12 individual setae suggested that shear adhesion force of a single seta is independent of setal length and dependent on setal diameter.